JoergSprave has a popular Youtube channel where he makes things that every kid would want to own growing up but their parents probably wouldn’t let them have.
In this case, we have a “machine gun” powered by a chainsaw that shoots glass marbles at a rate of 2,000 rounds per minute. It makes quick work of a set of bottles setup as targets.
Sprave shoots the video as one of the characters from the popular “Team Fortress” video game.
Here is a video from the video game company Valve that shows the character being portrayed.
Looks like he nailed it!